My Blender 3d Guide Series: Part 3 PREFERENCE SETTINGS YOU NEED TO KNOW! 

Blender Walk-Through Part 3 Preferences
0:00 Preferences / Control comma
Zoom to Mouse, Depth, Orbit Around Selection
0:19 Reset Factory Settings
1:15 Interface
1:26 Hover-Backspace
1:45 Temporary Editors
2:19 Status bar
3:00 Themes
7:34 Image Editor/UV
8:18 Node Editor
9:38 Viewport
10:58 Lights
11:43 editing
11:50 Animation
12:49 Input
13:53 Navigation
14:47 Keymap
15:17 Key-binding
16:50 System
18:50 File Paths